Sentinel 4: Dark Star

Details

The galaxy's finest tower defense series returns with an epic new installment
Sentinel's award-winning strategy gameplay expands explosively as the interstellar war moves to a mysterious alien world. Deploy devastating new towers and technology against an enemy that's smarter and more deadly than ever before. Battle across vast landscapes and earn a wealth of upgrades as you explore the mystery of the Dark Star.
CONQUER
• A huge campaign across 26 unique maps, each also playable in Endless mode.
• A second campaign introducing more weaponry and exploring a different part of the Dark Star.
• Defend massive, multi-screen landscapes and marathon paths.
DESTROY
• A bestiary full of new and returning enemies. Their special abilities and varied behaviour will keep even veteran players on their toes.
• The aliens fight back with the ability to damage, disable and destroy towers. How will you choose to counter them?
LOCK'N LOAD
• Pick your loadout from an extensive assortment of weaponry. Unlock Uber Towers that pack power to match their size.
• Deploy your own units onto the path to hinder attackers.
• Call in support from the skies with the Sentinel's trademark ship weapons.
• Unleash drones, nukes and more from your new improved Stronghold.
• Control Commander heroes to back up your defenses. Earn experience and level up to gain powerful new abilities.
TECH
• Real-time dynamic lighting and shader effects bring atmosphere to the alien landscape for the best Sentinel experience yet.**
• iCloud enabled for game saving across devices.
• GameCenter for leaderboards and achievements.
REWARD
• Spend your earnings on a massive selection of persistent upgrades to support your play style and complement your tactics.
• Upload your score to the Global Nexus and contribute to the worldwide cooperative push for rewards.
Follow us @origin8 on Twitter, Facebook
http://www.origin8.com/sentinel4
** Recommended for: iPad2+, iPhone4S+ and iPod Touch 5thGen+.
** The game will work on iPhone3GS, iPad1 and iPod Touch 4thGen but without these effects.

Obviously a no brainier for free but as a massive fan of the sentinel games with 3 in particular being one of my favourite ever TDs this just didn't do it for me at all, couldn't quite put my finger on why not but I gave up very early on with it.

The freebie's going to continue over the weekend by the way, so there's still a couple of days left to grab it. Remember to spread the word - the game's Global Nexus Progress system grants rewards to everyone for the playerbase's overall progress through the game. That means more active players = more loot to spend on lovely, lovely upgrades